JP2010076246A - Method for welding resin material - Google Patents

Method for welding resin material Download PDF

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Publication number
JP2010076246A
JP2010076246A JP2008246904A JP2008246904A JP2010076246A JP 2010076246 A JP2010076246 A JP 2010076246A JP 2008246904 A JP2008246904 A JP 2008246904A JP 2008246904 A JP2008246904 A JP 2008246904A JP 2010076246 A JP2010076246 A JP 2010076246A
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Japan
Prior art keywords
resin material
fitting
welding
resin
laser beam
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Granted
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JP2008246904A
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Japanese (ja)
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JP5547883B2 (en
Inventor
Koji Urase
浩司 浦瀬
Koji Nagano
康志 永野
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Panasonic Electric Works Co Ltd
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Panasonic Electric Works Co Ltd
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Priority to JP2008246904A priority Critical patent/JP5547883B2/en
Publication of JP2010076246A publication Critical patent/JP2010076246A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/118—Single monotone curved joints
    • B29C66/1182—Single monotone curved joints the joint being C-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
    • B29C66/12261—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment the two joint-segments being bevelled, e.g. the two joint-segments forming a V
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/65—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool
    • B29C66/652—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool moving the welding tool around the fixed article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04—Polymers of esters
    • B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2059/00—Use of polyacetals, e.g. POM, i.e. polyoxymethylene or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/006—PBT, i.e. polybutylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for welding a resin material by stable laser beams. <P>SOLUTION: Taper surfaces 3, 4 are formed respectively on two or more resin materials 1, 2. The taper surfaces 3, 4 are adhered each other and then an adhered surface is irradiated with laser beams L to melt the resin materials 1, 2. Thus two or more resin materials 1, 2 are welded at the taper surfaces 3, 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、複数の樹脂材を組み立てる際に用いられる樹脂材の溶着方法に関するものである。   The present invention relates to a resin material welding method used when assembling a plurality of resin materials.

従来より、複数の樹脂材を組み立てるにあたって、レーザ光を用いた溶着方法が採用されている（例えば、特許文献１参照）。図５（ａ）に二つの樹脂材１、２をレーザ光により溶着する方法の一例を示す。この場合、一方の樹脂材１はレーザ光Ｌを比較的吸収しやすい高吸収率の樹脂材で形成されるものであって、他方の樹脂材２はレーザ光Ｌを比較的透過しやすい高透過率の樹脂材で形成されている。   Conventionally, in assembling a plurality of resin materials, a welding method using laser light has been employed (see, for example, Patent Document 1). FIG. 5A shows an example of a method of welding two resin materials 1 and 2 with laser light. In this case, one resin material 1 is formed of a resin material with a high absorption rate that is relatively easy to absorb the laser beam L, and the other resin material 2 is a high transmittance material that is relatively easy to transmit the laser beam L. It is made of resin material with a rate of

そして、まず、二つの樹脂材１、２を重ね合わせて配置する。次に、図５（ｂ）に示すように、樹脂材１、２の接合面にレーザー照射装置ＬＭからレーザ光Ｌを照射する。このレーザ光Ｌは高透過率の樹脂材２を通過させて接合面に照射するようにする。これにより、接合面において高吸収率の樹脂材１がレーザ光Ｌを吸収して発熱し、この熱により接合面で樹脂材１、２を溶融させ、この後、図５（ｃ）に示すように、溶融した樹脂を硬化又は固化することにより溶着部１０を形成して樹脂材１、２を溶着することができる。また、二つの樹脂材１、２を重ね合わせた状態で押さえ治具などにより樹脂材１、２を加圧することにより、接合面を圧着しながら溶着することができる。
特開２００５−２８８９３４号公報 Then, first, the two resin materials 1 and 2 are superposed and arranged. Next, as shown in FIG. 5B, the laser beam L is irradiated from the laser irradiation device LM onto the bonding surfaces of the resin materials 1 and 2. The laser beam L is passed through the resin material 2 having a high transmittance so as to irradiate the bonding surface. As a result, the resin material 1 having a high absorption rate absorbs the laser light L at the joint surface and generates heat, and the heat causes the resin materials 1 and 2 to melt at the joint surface. Thereafter, as shown in FIG. Furthermore, the resin material 1 and 2 can be welded by forming the welded portion 10 by curing or solidifying the molten resin. Further, by pressing the resin materials 1 and 2 with a pressing jig or the like in a state where the two resin materials 1 and 2 are overlapped, the bonding surfaces can be welded while being crimped.
JP 2005-288934 A

しかし、上記の従来例では、レーザ光による溶着の際に、樹脂の溶着部より煤が発生し、レーザ光を集光するレンズが汚れたり、各樹脂材１、２の厚みなどの成型精度等の成型状態により、レーザ光の透過率や吸収率が変化したりした場合に、接合面でのレーザ光の焦点がずれるなどのレーザ光の照射条件が部分的に不充分になることがあり、溶着性が不安定となるおそれがあった。   However, in the above conventional example, at the time of welding with the laser beam, wrinkles are generated from the welded portion of the resin, the lens for condensing the laser beam is soiled, the molding accuracy such as the thickness of each resin material 1, 2, etc. Depending on the molding state, when the laser light transmittance or absorptance changes, the laser light irradiation conditions such as defocusing of the laser light on the bonding surface may be partially insufficient, There was a possibility that the weldability would become unstable.

本発明は上記の点に鑑みてなされたものであり、安定したレーザ光による溶着を行うことができる樹脂材の溶着方法を提供することを目的とするものである。   The present invention has been made in view of the above points, and an object of the present invention is to provide a resin material welding method capable of performing stable welding with laser light.

本発明の請求項１に係る樹脂材の溶着方法は、複数の樹脂材１、２のそれぞれにテーパー面３、４を形成し、テーパー面３、４同士を接合した後、その接合面にレーザ光Ｌを照射することにより樹脂材１、２を溶融して複数の樹脂材１、２をテーパー面３、４で溶着することを特徴とするものである。   According to a first aspect of the present invention, there is provided a resin material welding method in which tapered surfaces 3 and 4 are formed on each of a plurality of resin materials 1 and 2, and after the tapered surfaces 3 and 4 are joined together, laser is applied to the joined surfaces. By irradiating the light L, the resin materials 1 and 2 are melted and the plurality of resin materials 1 and 2 are welded by the tapered surfaces 3 and 4.

本発明の請求項２に係る樹脂材の溶着方法は、請求項１において、樹脂材１にテーパー面３を有する嵌合凸部５を形成し、他の樹脂材２にテーパー面４を有する嵌合凹部６を形成し、嵌合凸部５と嵌合凹部６とを嵌合することによって、嵌合凸部５と嵌合凹部６のテーパー面３、４同士を接合することを特徴とするものである。   The resin material welding method according to claim 2 of the present invention is the fitting method according to claim 1, wherein the resin material 1 is formed with the fitting convex portion 5 having the tapered surface 3 and the other resin material 2 is provided with the tapered surface 4. A taper surface 3 and 4 of the fitting convex part 5 and the fitting concave part 6 are joined by forming the joint concave part 6 and fitting the fitting convex part 5 and the fitting concave part 6 together. Is.

本発明の請求項３に係る樹脂材の溶着方法は、請求項１又は２において、テーパー面３、４が円弧状であることを特徴とするものである。   The resin material welding method according to claim 3 of the present invention is characterized in that, in claim 1 or 2, the tapered surfaces 3 and 4 are arcuate.

請求項１の発明では、テーパー面３、４を接合してその接合面にレーザ光を照射して溶着するので、レーザ光Ｌを集光するレンズの汚れや樹脂材１、２の成型状態によりレーザ光Ｌの透過率や吸収率が変化しても、接合面のいずれかの部分でレーザ光の照射条件が満たされる可能性が高くなって溶着部を形成するためのポイントを確保することができ、不充分な溶着部分が少なくなって、安定したレーザ光による溶着を行うことができるものである。   In the first aspect of the invention, since the tapered surfaces 3 and 4 are joined and the joining surfaces are irradiated with laser light and welded, depending on the dirt of the lens that collects the laser light L and the molding state of the resin materials 1 and 2. Even if the transmittance or absorptance of the laser beam L changes, there is a high possibility that the laser beam irradiation condition is satisfied at any part of the joint surface, and a point for forming the welded portion can be secured. Insufficient welded portions are reduced, and stable laser beam welding can be performed.

請求項２の発明では、嵌合凸部５と嵌合凹部６との嵌合によりテーパー面３、４の位置決めを容易に行うことができ、樹脂材１、２の溶着が行いやすくなるものである。   In the invention of claim 2, the taper surfaces 3 and 4 can be easily positioned by fitting the fitting convex part 5 and the fitting concave part 6, and the resin materials 1 and 2 can be easily welded. is there.

請求項３の発明では、一定角度の傾斜を有するテーパー面３、４であると成形用型の継ぎ目部分で成型時にバリが発生しやすくなるが、滑らかな傾斜面である円弧状とすることで成形用型の継ぎ目がなくなって成型時のバリ発生を防止することができるものである。   In the third aspect of the invention, if the tapered surfaces 3 and 4 have an inclination of a certain angle, burrs are likely to occur at the time of molding at the joint portion of the molding die, but by forming an arc shape that is a smooth inclined surface. The seam of the molding die is eliminated, and the generation of burrs during molding can be prevented.

以下、本発明を実施するための最良の形態を説明する。   Hereinafter, the best mode for carrying out the present invention will be described.

図１に、二つの樹脂材１、２を溶着する方法について例示する。   FIG. 1 illustrates a method for welding two resin materials 1 and 2.

一方の樹脂材１は他方の樹脂材２よりも比較的レーザ光Ｌの透過率が低くて吸収率が高いものを用いることができ、これにより、溶着時に樹脂材１がレーザ光Ｌを十分に吸収して発熱することができるものである。このような樹脂材１は、例えば、ポリブチレンテレフタレート（ＰＢＴ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリオキシメチレン（ＰＯＭ）、ポリプロピレン（ＰＰ）、ポリスチレン（ＰＳ）、ポリカーボネート（ＰＣ）、ポリメタクリル酸メチル（ＰＭＭＡ）などの樹脂材料の成型品を用いることができる。   One resin material 1 can be used that has a relatively low laser beam L transmittance and a high absorption rate than the other resin material 2, so that the resin material 1 sufficiently absorbs the laser beam L during welding. It can absorb and generate heat. Such a resin material 1 includes, for example, polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyoxymethylene (POM), polypropylene (PP), polystyrene (PS), polycarbonate (PC), polymethyl methacrylate ( A molded product of a resin material such as PMMA) can be used.

もう一方の樹脂材２は他方の樹脂材１よりも比較的レーザ光Ｌの吸収率が低くて透過率が高いものを用いることができ、レーザ光Ｌの透過率が３０〜７０％程度であることが好ましい。これにより、溶着時に樹脂材２がレーザ光Ｌを十分に透過して接合面に到達することができることができるものである。このような樹脂材２は上記と同様の樹脂材料の成型品を用いることができる。   As the other resin material 2, a material having a relatively low absorption rate of the laser light L and a high transmittance than the other resin material 1 can be used, and the transmittance of the laser light L is about 30 to 70%. It is preferable. Thereby, the resin material 2 can fully permeate | transmit the laser beam L at the time of welding, and can reach | attain a joint surface. Such a resin material 2 can be a molded product of the same resin material as described above.

本発明では、樹脂材１、２の溶着する面がテーパー面（傾斜面）３、４として形成されている。図１（ａ）では、樹脂材１、２を上下に配置して溶着するものであるため、下側の樹脂材１の上面がテーパー面３として形成されており、上側の樹脂材２の下面がテーパー面４として形成されている。テーパー面３とテーパー面４は同じ傾斜角を有し、レーザ光Ｌの入射方向に対して０°よりも大きくて９０°よりも小さい傾斜角にするのが好ましく、より好ましくは３０〜６０°である。また、テーパー面３とテーパー面４は同じ方向に向いて傾斜してればよい。尚、図１（ａ）のものでは樹脂材１、２は四角枠状に形成されているが、これに限定されるものではなく、各種の形状を採用することができる。   In the present invention, the surfaces on which the resin materials 1 and 2 are welded are formed as tapered surfaces (inclined surfaces) 3 and 4. In FIG. 1 (a), since the resin materials 1 and 2 are arranged vertically and welded, the upper surface of the lower resin material 1 is formed as a tapered surface 3, and the lower surface of the upper resin material 2 is formed. Is formed as a tapered surface 4. The tapered surface 3 and the tapered surface 4 have the same inclination angle, and are preferably set to an inclination angle larger than 0 ° and smaller than 90 ° with respect to the incident direction of the laser light L, more preferably 30 to 60 °. It is. Moreover, the taper surface 3 and the taper surface 4 should just incline in the same direction. In addition, in the thing of Fig.1 (a), although the resin materials 1 and 2 are formed in square frame shape, it is not limited to this, Various shapes can be employ | adopted.

そして、樹脂材１、２を溶着するにあたっては、次のようにして行う。まず、一方の樹脂材１の上に他方の樹脂材２を載置する。このとき、レーザ光Ｌの透過率の高い樹脂材２をレーザ光Ｌの吸収率の高い樹脂材１の上に重ね合わせて、テーパー面３とテーパー面４とを接合する。この場合、図１（ｂ）に示すように、テーパー面３とテーパー面４とはほとんど隙間なく密着するか、隙間があいていても略平行に対向するものである。   Then, the resin materials 1 and 2 are welded as follows. First, the other resin material 2 is placed on one resin material 1. At this time, the taper surface 3 and the taper surface 4 are joined by superposing the resin material 2 having a high transmittance of the laser beam L on the resin material 1 having a high absorption factor of the laser beam L. In this case, as shown in FIG. 1 (b), the taper surface 3 and the taper surface 4 are in close contact with each other with little gap, or are opposed substantially in parallel even if there is a gap.

次に、テーパー面３とテーパー面４の接合面にレーザ光Ｌを照射する。このとき、レーザ光Ｌは、レーザ光Ｌの透過率の高い樹脂材２を通過させてテーパー面３とテーパー面４の接合面に照射するようにする。また、レーザ光Ｌは溶着が必要な部分の総てに照射されるように、レーザ光Ｌを樹脂材１、２に対して走査するようにする。そして、このようにしてテーパー面３とテーパー面４の接合面にレーザ光Ｌを照射すると、レーザ光Ｌの吸収率の高い樹脂材２がレーザ光Ｌを吸収して発熱し、この発熱により、樹脂材１と樹脂材２の一方又は両方が溶融する。この後、樹脂の溶融部分を発熱により硬化したりあるいは降温により固化したりすることにより、図１（ｃ）に示すように、溶着部１０を形成する。そして、この溶着部１０により樹脂材１と樹脂材２とを溶着することができるものである。溶着時のレーザの種類、使用周波数の範囲、強さの範囲などは、樹脂材１、２の種類や厚み等によって適宜設定可能であるが、レーザーパワーは約１０〜３０Ｗにすることができる。   Next, the laser beam L is irradiated to the joint surface between the tapered surface 3 and the tapered surface 4. At this time, the laser light L passes through the resin material 2 having a high transmittance of the laser light L so as to irradiate the joint surface between the tapered surface 3 and the tapered surface 4. Further, the laser beam L is scanned with respect to the resin materials 1 and 2 so that the laser beam L is irradiated to all the portions that require welding. And when the laser beam L is irradiated to the joint surface of the taper surface 3 and the taper surface 4 in this way, the resin material 2 having a high absorption rate of the laser beam L absorbs the laser beam L and generates heat. One or both of the resin material 1 and the resin material 2 are melted. Thereafter, the melted portion of the resin is cured by heat generation or solidified by lowering the temperature, thereby forming the welded portion 10 as shown in FIG. And the resin material 1 and the resin material 2 can be welded by this welding part 10. FIG. The type of laser at the time of welding, the range of operating frequencies, the range of strength, and the like can be set as appropriate depending on the type and thickness of the resin materials 1 and 2, but the laser power can be about 10 to 30 W.

本発明では、テーパー面３、４を接合し、この接合面にレーザ光Ｌを照射して溶着するので、図２（ａ）に示すように、テーパー面３、４のレーザ光Ｌの照射される範囲（レーザ光径ＬＤの範囲）のＡ点とＢ点とではレーザ照射装置ＬＭからの距離が異なるため、レーザ光Ｌの焦点がずれるなどの照射条件がばらついても、Ａ点とＢ点の間のいずれかの部分でレーザ光Ｌの照射条件が最適になって溶着できる可能性がある。すなわち、レーザ照射装置ＬＭの光学系を介してレーザ光Ｌを照射する場合、焦点調整なども行っているが、樹脂材１、２の成型精度やレーザ光Ｌを集光するレンズが汚れるなどの様々な要因でレーザ光Ｌの入射方向（深さ方向）に焦点距離がことなることになる。図２（ｂ）の従来例では、レーザ光Ｌの照射される範囲（レーザ光径ＬＤの範囲）のＡ’点とＢ’点とではレーザ照射装置ＬＭからの距離が一定であるため、焦点がずれると、Ａ’点とＢ’点の間で溶着されないことがあり、溶着が不安定になるおそれがある。   In the present invention, since the tapered surfaces 3 and 4 are joined and the joining surfaces are irradiated with the laser beam L and welded, as shown in FIG. 2A, the laser beams L of the tapered surfaces 3 and 4 are irradiated. Since the distance from the laser irradiation device LM differs between the point A and the point B in the range (laser beam diameter LD range), even if the irradiation conditions such as the defocus of the laser beam L vary, the points A and B There is a possibility that welding can be performed by optimizing the irradiation condition of the laser beam L at any portion between the two. That is, when the laser beam L is irradiated through the optical system of the laser irradiation device LM, the focus adjustment is also performed, but the molding accuracy of the resin materials 1 and 2 and the lens that collects the laser beam L become dirty. The focal length differs in the incident direction (depth direction) of the laser light L due to various factors. In the conventional example of FIG. 2B, the distance from the laser irradiation apparatus LM is constant at the points A ′ and B ′ of the range irradiated with the laser beam L (the range of the laser beam diameter LD). If they are shifted, welding may not be performed between the points A ′ and B ′, and the welding may become unstable.

図３（ａ）（ｂ）に他の実施の形態の一例を示す。この溶着方法では、一方の樹脂材１に嵌合凸部５を設けると共に他方の樹脂材２に嵌合凹部６を設け、嵌合凸部５と嵌合凹部６とを嵌合した状態で溶着するものである。断面形状において嵌合凸部５は二つのテーパー面３、３により先端面（凸面）が形成されている。また、断面形状において嵌合凹部６は二つのテーパー面４、４により底面（凹面）が形成されている。嵌合凸部５と嵌合凹部６とを嵌合すると、テーパー面３とテーパー面４とが一つずつほとんど隙間なく密着するか、隙間があいていても略平行に対向するものである。図３（ａ）に示すように、透光率の高い樹脂材２の下面に嵌合凹部６を形成すると共に吸収率の高い樹脂材１の上面に嵌合凸部５を形成することができ、逆に、図３（ｂ）に示すように、透光率の高い樹脂材２の下面に嵌合凸部５を形成すると共に吸収率の高い樹脂材１の上面に嵌合凹部６を形成することができる。テーパー面３、３の間の角度α及びテーパー面４、４の間の角度βは、α＞βでα＋β＝３６０°となる範囲であれば、αとβを任意に設定することができるが、例えば、α＝２４０〜３００°、β＝６０〜１２０°とするのが好ましい。   An example of another embodiment is shown in FIGS. In this welding method, the fitting convex portion 5 is provided in one resin material 1 and the fitting concave portion 6 is provided in the other resin material 2, and the welding is performed in a state where the fitting convex portion 5 and the fitting concave portion 6 are fitted. To do. In the cross-sectional shape, the fitting convex portion 5 has a tip surface (convex surface) formed by two tapered surfaces 3 and 3. Further, in the cross-sectional shape, the fitting recess 6 has a bottom surface (concave surface) formed by two tapered surfaces 4 and 4. When the fitting convex part 5 and the fitting concave part 6 are fitted, the taper surface 3 and the taper surface 4 are brought into close contact with each other with almost no gap, or are opposed substantially in parallel even if there is a gap. As shown in FIG. 3A, the fitting concave portion 6 can be formed on the lower surface of the resin material 2 having a high light transmittance, and the fitting convex portion 5 can be formed on the upper surface of the resin material 1 having a high absorption rate. On the contrary, as shown in FIG. 3B, the fitting convex portion 5 is formed on the lower surface of the resin material 2 having a high light transmittance, and the fitting concave portion 6 is formed on the upper surface of the resin material 1 having a high absorption rate. can do. As long as the angle α between the tapered surfaces 3 and 3 and the angle β between the tapered surfaces 4 and 4 are within a range where α> β and α + β = 360 °, α and β can be arbitrarily set. For example, it is preferable that α = 240 to 300 ° and β = 60 to 120 °.

図４（ａ）（ｂ）に他の実施の形態の一例を示す。この溶着方法では、一方の樹脂材２に嵌合凸部５を設けると共に他方の樹脂材１に嵌合凹部６を設け、嵌合凸部５と嵌合凹部６とを嵌合した状態で溶着するものであるが、断面形状において嵌合凸部５のテーパー面３である先端面が凸の円弧状面として形成されていると共に、嵌合凹部６のテーパー面４である底面が凹の円弧状面として形成されている。嵌合凸部５と嵌合凹部６とを嵌合すると、テーパー面３とテーパー面４とがほとんど隙間なく密着するか、隙間があいていても略平行に対向するものである。図４（ａ）に示すように、透光率の高い樹脂材２の下面に嵌合凹部６を形成すると共に吸収率の高い樹脂材１の上面に嵌合凸部５を形成することができ、逆に、図４（ｂ）に示すように、透光率の高い樹脂材２の下面に嵌合凸部５を形成すると共に吸収率の高い樹脂材１の上面に嵌合凹部６を形成することができる。テーパー面３及テーパー面４の曲率半径Ｒは無限大（∞）未満、好ましくは、Ｒ２００〜１０００ｍｍとすることができる。   FIGS. 4A and 4B show an example of another embodiment. In this welding method, one resin material 2 is provided with a fitting convex portion 5 and the other resin material 1 is provided with a fitting concave portion 6 so that the fitting convex portion 5 and the fitting concave portion 6 are fitted. However, in the cross-sectional shape, the tip surface that is the tapered surface 3 of the fitting convex portion 5 is formed as a convex arcuate surface, and the bottom surface that is the tapered surface 4 of the fitting concave portion 6 is a concave circle. It is formed as an arcuate surface. When the fitting convex part 5 and the fitting concave part 6 are fitted, the taper surface 3 and the taper surface 4 are in close contact with each other with little gap, or are substantially parallel to each other even if there is a gap. As shown in FIG. 4A, the fitting recess 6 can be formed on the lower surface of the resin material 2 having a high light transmittance, and the fitting protrusion 5 can be formed on the upper surface of the resin material 1 having a high absorption rate. On the contrary, as shown in FIG. 4B, the fitting convex portion 5 is formed on the lower surface of the resin material 2 having a high light transmittance, and the fitting concave portion 6 is formed on the upper surface of the resin material 1 having a high absorption rate. can do. The radius of curvature R of the tapered surface 3 and the tapered surface 4 is less than infinity (∞), preferably R200 to 1000 mm.

本発明において、溶着時にテーパー面３、４を加圧して密着させるのが好ましく、これにより、テーパー面３、４を強固に溶着することができる。この場合、例えば、ワーク（樹脂材１、２を接合した物）の上にガラス板等の透明板を配し、ワークの下側と透明板の上側をプレス機等で挟み込むようにして加圧させることができる。また、テーパー面３、４での圧力を例えば２００〜５００ｋＰａとすることができる。   In the present invention, it is preferable that the tapered surfaces 3 and 4 are pressed and adhered at the time of welding, whereby the tapered surfaces 3 and 4 can be firmly welded. In this case, for example, a transparent plate such as a glass plate is arranged on the workpiece (the product in which the resin materials 1 and 2 are joined), and pressurization is performed by sandwiching the lower side of the workpiece and the upper side of the transparent plate with a press machine or the like. Can be made. Moreover, the pressure in the taper surfaces 3 and 4 can be 200-500 kPa, for example.

本発明の実施の形態の一例を示し、（ａ）は斜視図、（ｂ）（ｃ）は一部の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS An example of embodiment of this invention is shown, (a) is a perspective view, (b) (c) is partial sectional drawing. （ａ）は本発明を示す一部の断面図、（ｂ）は従来例を示す一部の断面図である。(A) is a partial cross-sectional view showing the present invention, (b) is a partial cross-sectional view showing a conventional example. 同上の他の実施の形態の一例を示し、（ａ）（ｂ）は一部の断面図である。An example of other embodiment same as the above is shown, and (a) and (b) are partial sectional views. 同上の他の実施の形態の一例を示し、（ａ）（ｂ）は一部の断面図である。An example of other embodiment same as the above is shown, and (a) and (b) are partial sectional views. 従来例を示し、（ａ）は斜視図、（ｂ）（ｃ）は一部の断面図である。A prior art example is shown, (a) is a perspective view, (b) (c) is a partial sectional view.

符号の説明Explanation of symbols

１ 樹脂材
２ 樹脂材
３ テーパー面
４ テーパー面
５ 嵌合凸部
６ 嵌合凹部 DESCRIPTION OF SYMBOLS 1 Resin material 2 Resin material 3 Tapered surface 4 Tapered surface 5 Fitting convex part 6 Fitting concave part

Claims (3)

複数の樹脂材のそれぞれにテーパー面を形成し、テーパー面同士を接合した後、そのテーパー面にレーザ光を照射することにより樹脂材を溶融して複数の樹脂材をテーパー面で溶着することを特徴とする樹脂材の溶着方法。   A taper surface is formed on each of a plurality of resin materials, and after joining the taper surfaces, the taper surfaces are irradiated with laser light to melt the resin material and weld the plurality of resin materials on the taper surface. A method of welding a resin material characterized. 樹脂材にテーパー面を有する嵌合凸部を形成し、他の樹脂材にテーパー面を有する嵌合凹部を形成し、嵌合凸部と嵌合凹部とを嵌合することによって、嵌合凸部と嵌合凹部のテーパー面同士を接合することを特徴とする請求項１に記載の樹脂材の溶着方法。   By forming a fitting convex part having a tapered surface on a resin material, forming a fitting concave part having a tapered surface on another resin material, and fitting the fitting convex part and the fitting concave part, The method for welding resin materials according to claim 1, wherein the tapered surfaces of the portion and the fitting recess are joined together. テーパー面が円弧状であることを特徴とする請求項１又は２に記載の樹脂材の溶着方法。
The method for welding resin materials according to claim 1 or 2, wherein the tapered surface has an arc shape.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2764981B1 (en) * 2013-02-07 2017-08-16 JENOPTIK Automatisierungstechnik GmbH Device for laser transmission welding, method for laser transmission welding and container sealed with film produced with the same
WO2020045555A1 (en) * 2018-08-31 2020-03-05 日本電産株式会社 Housing

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JP2004223719A (en) * 2003-01-17 2004-08-12 Matsushita Electric Works Ltd Method for joining thermoplastic resins by laser
JP2005067208A (en) * 2004-10-13 2005-03-17 Toyota Motor Corp Resin molded article

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JP2004223719A (en) * 2003-01-17 2004-08-12 Matsushita Electric Works Ltd Method for joining thermoplastic resins by laser
JP2005067208A (en) * 2004-10-13 2005-03-17 Toyota Motor Corp Resin molded article

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2764981B1 (en) * 2013-02-07 2017-08-16 JENOPTIK Automatisierungstechnik GmbH Device for laser transmission welding, method for laser transmission welding and container sealed with film produced with the same
WO2020045555A1 (en) * 2018-08-31 2020-03-05 日本電産株式会社 Housing

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